Deployment

Fall back to AWS CloudFront

There is a backup Content Delivery Network (CDN) that can be used in case Fastly is down. This backup CDN is currently provided by AWS CloudFront.

Important At the time of writing, GOV.UK will be served by static mirrors and not the origin of GOV.UK if you fallback to the backup CDN.

Procedure

You will have to make 2 DNS changes to GOV.UK:

1. you will have to ask JISC (very few people are authorised to make such changes) to change the cname of www.gov.uk to the www AWS CloudFront distribution domain. You can log into the AWS web console to find the www AWS CloudFront distribution domain.

2. you will have to change the cname of assets.publishing.service.gov.uk to the the assets AWS CloudFront distribution domain using the usual gov.uk processes. You can log into the AWS web console to find the assets AWS CloudFront distribution domain.

More in the Deployment section

Learn

• The development and deployment pipeline

How to...

• Block apps from being deployed
• Deploy an application to GOV.UK
• Deploy fixes for a security vulnerability
• Deploy Puppet
• Deploy Terraform
• Deploy when GitHub is unavailable
• Fall back to the static mirrors
• Handle encrypted hieradata
• Monitor your app during deployment
• Publish special routes
• Restart an application
• Run a rake task
• Set up Heroku review apps for pull requests
• Switch an app off temporarily

This page was last reviewed on 28 June 2019. It needs to be reviewed again on 28 December 2019 by the page owner #govuk-2ndline .

This page was set to be reviewed before 28 December 2019 by the page owner #govuk-2ndline. This might mean the content is out of date.